Improvement in heating-stoves



"UNITED STATES PATENT Ori-Ion GEORGE W. HERRIGK, OF DETROIT, MICHIGAN, ASSIGNOR TO THE DETROIT STOVE-WORKS, OF SAME PLAGE.

IMPROVEMENT IN HEATlNC-STOVES.l

Specification forming part of Letters Patent No. 159,670, dated February 9, 1,875; application filed October 1, 1874. y

of heating-stoves which are designed for the consumption of soft or bituminous coals. All such coals, in the process of combustion, throw off a large amount of smoke and gases, which Vtend toa great deposit of soot in the chimney and tlues, unless such smoke and gases 'are destroyed. The object of this invention is,

therefore, to so construct the stove that it will consume all, or nearly all, the smoke and gases so thrown off in the process of combustion, while at the same time the stove may be fed from the top, as other base-burning or magazine stoves.

Figure l is a perspective view of my improved stove. Fig. 2 is a vertical section from front to rear, and through the flue. Fig. 3 is a perspective View of the top of the magazine, with the cap or top thereof' removed. Fig. 4 is a perspective view of the top of the tire-pot section.

Like letters refer to like parts in` each iigure.

In the accompanying drawings, A represents the base section, surmounted by the combustion -chamber or tire pot B, above which is secured the conical magazine C, which, in turn, is surmounted by the cap or cover D. The fire-pot is provided with a grate, E, and opposite the lower end of said lire-pot are placed illuminating-windows, as shown. A line, F, leads upward and rearward from the rear side of the fire-pot, and near its bottoni, and below base or lower end of the conical magazine. This flue is lined with re clay or brick, or other suitable material, to the point a, where the ordinary stove-pipe connection is made with the chimney. This iiue has two openings, the one, b, being directly from the fire-pot, and the other one, c, connecting with the lue G, which is attached to the inner and rear side of the magazine. The upper end of this iiue opens at the top of the magazine, and below the cap. Near the top of this ilue, and through the wall of the magazine, are one or more apertures, d.

The operation is as follows: The iire being kindled in the tire-pot in the usual way, the magazine is lled from the top by removing the cover for that purpose. The products of combustion pass off directly through the opening b into the lue, which soon becomes heated to a high degree of temperature, the brick lining retaining the heat, and preventing' its radiation through the iron shell of the lue. The gases, or a small part of them, rise through the coal to the top of the magazine, whence they are drawn downward through the flue G and the lateral opening cinto the line F, being fed with oxygen through apertures d. Arriving in the iue F these gases mingle with the unconsumed carbon-smoke, and having received a sufcient amount of oxygen through the apertures to make the gases and smoke combustible, are ignited by the great heat in the flue, and are entirely, or nearly so, consumed, thereby rendering the deposit of soot and the escape of all noxious gases utterly impossible. To make this combustion more perfect, the first section El of the pipe should be lined or bricked up, to assist in retaining the heat. This pipe-section is provided with an opening or illuminated window, h, through which the ilames may be seen. In front of the flue F is placed a guard or screen, K, to prevent coal or ashes from filling the tlue. Without this screen the flue would gradually become filled and choked, so that no draft could be had. As many openings or illuminating windows may be put into the pi pe-section as are deemed desirable.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. The combination, with the conical magazine O and tire-pot B, of the gas-flue G extending downward from the top of the magazine to or near the opening c into the flue F, and apertures d, for the purpose set forth.

2. The continuous conical magazine O and iire-pot B, in combination with bricked ue F, gas-flue G, and bricked pipe-section H, substantially as and for the purpose set forth.

GEORGE W. HERRIOK.

Witnesses:

H. S. SPRAGUE, C. E. HUEsTIs. 

